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1. The study of how living and extinct organisms are related to one another
Phylogeny
A branch of biology dealing with embryos and their development
Embryology
A population whose members can interbreed and produce fertile offspring
Species
A change in a DNA sequence, usually occurring because of errors in replication or repair
Mutation
A structure or organ that has diminished in size or usefulness in the course of evolution
vestigial structures
Random changes in gene frequency that is more obvious in smaller populations but that occurs in all populations
Genetic Drift
. Inherited from a common ancestor, may have a similar structure but different function
Homologous structures
Generally, a group of organisms living close to one another that interbreed with one another and do not breed with other similar groups
Population
Similar because of convergent evolution, and not because of common ancestry, may have a similar function but a different structure
analogous__structures
Changes in gene frequency in a population from one generation to the next
Evolution
A process in which some individuals have genetically-based traits that improve survival or reproduction and thus have more offspring surviving to reproductive age than other individuals
Natural selection
The process of changing the characteristics of animals by artificial manual means. a process in which humans consciously select for or against particular features in organisms
Artificial selection
summarize the 4 main points of Darwin’s theory of Evolution by Natural Selection
Overproduction- When there are too many offspring produced for the limited resources.
Decent of modification - The idea that species evolve over time, changing and branching from a common ancestor; A change in gene frequencies over time.
Adaptation- Features that allow organisms to survive better in their environment.
Variation- Differences in phenotypes between organisms.
List and explain 5 factors that can cause evolution (the 5 fingers of evolution!)
Small population
Selective reproduction
Mutations
Gene flow
Natural selection/adaptation.
. List 5 lines of evidence for evolution.
Fossils
Vestigial Structures
Biogeograpy
Embrology
Dna
Explain the importance of transitional fossils, and give an example.
To show the changes over time in a species' bone structure. An example of a transitional fossil is a whale's blowhole moving increasingly up in the skull over time.
8. Do sharks have bony skeletons?
No
Do Birds have hair
No
What are the 8 taxonomy levels in order from LEAST specific to MOST specific?
Domain,Kingdom,Phylum, Class, Order, Family, Genus, and species.
What are the 5 Kingdoms?
Animia,Fungi, Plantae, Protista,Monera.